Single Row Male Power Plug 3.0mm Pitch Connector with Rubber Shell Buckle 5557 for PCB Wire Board Connectors
Product Highlights
- Pitch: 3.0mm, single-row male power connector, model 5557
- Housing: UL94V-0 flame retardant, Halogen-Free, meets industrial & home appliance safety requirements
- Reinforced rubber shell buckle design, anti-vibration, prevents accidental un-mating under harsh industrial/automotive vibration
- Complete supporting set: matching housing + crimp terminals available
- Compact structure, stable power transmission for wire-to-board connection
Technical Specifications
| Item |
Details |
| Electrical Performance |
Rated Current: 5A max per contact
Rated Voltage: 250V AC
Insulation Resistance: ≥1000MΩ
Contact Resistance: < 20 mΩ
Withstand Voltage: 1500V AC/min |
| Mechanical Performance |
Pitch: 3.0mm
Number of positions: 2P~24P customizable
Mating Cycles: ≥500 times
Mating Force: Low insertion force; buckle locking for anti-unmating
Retention: Enhanced shell buckle against vibration and drop-off |
| Material & Plating |
Housing: UL94V-0, Halogen-Free Nylon
Terminal: Copper alloy, Tin plating (Gold plating optional)
Buckle: Integrated rubber shell lock |
| Environmental Spec |
Operating Temp: -40℃ ~ +105℃
Compliant for industrial & light automotive vibration environments |
| Soldering Guide |
Solder Temp: 260℃ max, 5s max reflow soldering
Through-hole PCB soldering |
Cross Reference / Alternative Replacement
Direct compatible replacement for internationally famous brands:
- JST: EH series
- Molex: 5557 series
- AMP/TE: equivalent 3.0mm single row wire-to-board power connectors
Note: Pin pitch, locking structure and footprint are interchangeable for drop-in replacement.
Product Advantages
- Anti-vibration rubber buckle locking: solves the accidental un-mating pain point in vibrating equipment
- UL94V-0 & Halogen-Free housing, safer for high-temperature industrial and household electrical products
- Full set supply: housing + terminals, one-stop sourcing
- Interchangeable with JST/Molex/TE 3.0mm connectors, easy redesign & BOM substitution
- Stable tin-plated copper terminals, low contact resistance, reliable power transmission
Application
✅ Industrial control equipment
✅ Home appliances (air conditioner, water heater, power supply module)
✅ Light-duty automotive interior wiring
✅ Power supply & UPS modules
✅ LED driver
✅ Medical auxiliary equipment
✅ PCB wire-board power connection
Packaging Method
- Standard: Anti-static bag packing
- Optional: White / Neutral carton box packing. Custom packing label & barcodes available upon request.
Payment Method
EXW, FOB, CIF, CPT, T/T, L/C available
Lead Time
- Samples: 3 working days
- Mass order: 1–2 weeks
Factory Certificate & Custom Service
- Certifications: UL, RoHS, REACH, ISO9001
- MOQ: Low MOQ for standard items
- Sample Policy: Free samples available / Fast sample delivery. Custom service: Custom pin count, plating thickness, cable harness assembly, special packaging & marking.
Customer Selection Guide
- Confirm pin position (2P~24P) and rated current requirement
- Check working temperature and vibration level of your equipment; recommend buckle version for high vibration scenario
- Verify PCB footprint when replacing JST/Molex/TE parts
- Select tin/gold plating based on corrosion & service life requirements
- Confirm halogen-free & flame retardant requirement before BOM finalization
FAQ
1. Q: Do you have a catalogue? Can you send me the catalogue to check all your products?
A: Yes, you can contact us online or send an Email to get the catalogue.
2. Q: I can't find the product in your catalogue. Can you make this product for me?
A: Our catalogue shows most of our products, but not all. Just let us know what product you need, and how many you want. If we do not have it, we can also design and make a new mould to produce it. For your reference, making an ordinary mould will take about35-45 days.
3. Q: Can you provide a sample? Are these samples free?
A: Yes, we provide 5-10 pcs of connector free samples for testing. But you have to pay the shipping cost
4. Q: What about your delivery time?
A: Stock goods are delivered within 1 day; customized goods are delivered within 5-7days
5. Q: How to ship my order?
A: For small packages, send them by Express, such as DHL, FedEx, UPS, TNT, EMS. That's Door-to-Door service. For big packages, we can send them by Air or by sea. We use standard export cartons. We are responsible for any product damage caused during delivery.
6. Q: What kind of payment do you accept? Can I pay RMB?
A: Weaccept T/T(Wire transfer), Western Union, and PayPal. Please make sure that we can receive the same amount as the Invoice. And you can pay in RMB. No problem.
7. Q: How about your company's quality control
A: Strictly follow ISO9001. IQC, OQC, IPQC, and QA account for 10% of our staff. All of our products will be tested by CCD.
8. Q: I need your price list of all your products. Do you have a price list?
A: We do not have a price list of all of our products. Because we have so many items, it's impossible to list all prices, and prices change based on material costs and quantity. And you can give us a list of all of the items you need; we will confirm carefully one by one and give you a specification and price list
9. Q: Can you make customized products and customized packing?
A: Yes. We have made a lot of customized
products for our customers formerly (mainly wire harnesses). About customized packing, there is no problem; we can put your logo or other information on the package. Just have to point out that it incurs additional cost.
10. Q: What certificates do you have?
A: CE, CQC, UL, ISO9001, ISO14001, IATF16949, ISO45001, QC080000, etc.
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